This study aims to determine the effect of different concentrations of red seaweed flour on the sensory, physical and dietary fiber content of boba bubble. This research method used a Randomized Block Design (RBD) with different treatment concentrations of seaweed flour with 4 levels (F0 100% tapioca flour and 0% seaweed flour, F1 100% tapioca flour and 10% seaweed flour, F2 100% tapioca flour …